I understand exactly what you mean Megan! I've been doing a lot of this over the last few months, and I can't exaclty say why I do it, but I know that most of the time when I do it, I sit there in the process of eating whatever I chose that day, thinking to myself that I'm bloody daft for doing it and I already regret it!
My downfall was always a Thursday. I'd get to lunchtime on Thursday, and then I find myself walking into Tesco or somewhere, and walking out with cookies or chocolate without even realising fully!
And I would be the same as you, I wouldn't even be hungry, I would just eat more and more until I felt so bloated I felt almost sick
I've now made a point the last few weeks of avoiding those aisles in the shops
I go straight to what I'm looking for, and leave. If I don't it goes wrong!
I don't really have an answer for how to get yourself out of that vicious circle, because I know it's not easy, but I've just been trying to make sure I avoid any sight of those dangerous foods for now.
It's not a sustainable lifestyle choice in honesty, but for now, I feel I need to avoid that sort of thing until I get my losses back under control.
I've also been making sure that I use some syns on chocolate each day. I think that's helped too. It's only a little bit of chocolate, but at least it's something!